LOCATION HIBRITEN NC+GAEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, subactive, mesic Typic Hapludults
TYPICAL PEDON: Hibriten very cobbly sandy loam. (Colors are for moist soil unless otherwise stated.)
A1--0 to 2 inches; dark grayish brown (10YR 4/2) very cobbly sandy loam; weak fine granular structure; very friable; many fine and medium roots; few medium flakes of mica; 40 percent, by volume fragments of sillimanite schist; very strongly acid; abrupt smooth boundary.
A2--2 to 8 inches; brown (10YR 4/3) very cobbly sandy loam; moderate medium granular structure; very friable; few fine and medium roots; few fine flakes of mica; 40 percent, by volume fragments of sillimanite schist; very strongly acid; clear smooth boundary. (Combined thickness of the A horizon is 2 to 12 inches.)
BA--8 to 12 inches; yellowish brown (10YR 5/6) very cobbly sandy loam; weak very coarse granular structure; very friable; few medium roots; few fine flakes of mica; 60 percent, by volume fragments of sillimanite schist; very strongly acid; clear smooth boundary. (0 to 8 inches thick)
Bt--12 to 24 inches; yellowish red (5YR 4/6) very cobbly sandy clay loam; weak medium subangular blocky structure; friable; few fine and medium flakes of mica; 60 percent, by volume fragments of sillimanite schist; very strongly acid; clear smooth boundary. (10 to 23 inches thick)
Cr--24 to 48 inches; soft sillimanite schist; fractured at intervals of 4 to less than 18 inches; moderately cemented; high excavation difficulty; clear irregular boundary. (0 to 30 inches thick)
R--48 inches; hard sillimanite schist; fractured at intervals of 4 to less than 18 inches; very strongly cemented; extremely high excavation difficulty.
TYPE LOCATION: Caldwell County, North Carolina; 8.0 miles east of Lenoir on North Carolina Highway 90, 1.9 miles south on State Road 1734; 0.3 mile southwest on State Road 1735; 1.1 miles west on private road to field road, 0.4 mile north, 75 feet east of road.
RANGE IN CHARACTERISTICS:
Depth to the Base of the Argillic: 20 to 40 inches
Depth to Bedrock: 20 to 40 to soft bedrock and greater than 40 to hard bedrock
Depth to Seasonal High Water Table: Greater than 72 inches
Rock Fragments: 15 to 70 percent, by volume, in the A and B horizons and 35 to 70 percent in the C horizon; mostly gravel, cobbles, and stones from sillimanite schist, mica schist, or quartz mica gneiss
Soil Reaction: Very strongly to strongly acid, except where limed
Other Features: Most pedons have few to common flakes of mica
RANGE OF INDIVIDUAL HORIZONS:
A horizon:
Color--hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 to 6. A horizons with value and chroma of 3 or less are less than 6 inches thick.
Texture (fine-earth fraction)--sandy loam
E horizon (if it occurs):
Color--hue of 7.5YR or 10YR, value of 4 to 6, and chroma of 4 to 6
Texture (fine-earth fraction)--sandy loam
BA horizon or BE horizon (if it occurs):
Color--hue of 5YR to 10YR, value of 4 to 6, and chroma of 4 to 6
Texture (fine-earth fraction)--sandy loam or loam
Bt horizon:
Color--hue of 5YR to 10YR, value of 4 to 6, and chroma of 4 to 8
Texture (fine-earth fraction)--sandy clay loam, clay loam, or loam
C horizon (if it occurs):
Color--hue of 5YR to 10YR, value of 4 to 6, and chroma of 4 to 8
Texture (fine-earth fraction)--sandy clay loam, clay loam, or loam
Cr horizon:
Bedrock kind--sillimanite schist with occasional interbeds of mica schist and quartz mica gneiss
Bedrock hardness--weakly cemented to moderately cemented
Fracture interval--greater than 4 inches
Excavation difficulty--low to high
R horizon (if it occurs):
Bedrock kind--sillimanite schist, mica schist, or quartz mica gneiss
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES:
Blackthorn soils--formed in colluvial material derived from acid sandstone, shale and underlying residuum from limestone and limy shale; very deep to bedrock
Blocktown soils--formed in residuum weathered from phyllite and schist, shallow to bedrock
Cliffield soils--formed in residuum, affected by soil creep weathered from high-grade metamorphic rocks; moderately deep to hard bedrock
Croom soils--formed in coastal plain fluvial and deltaic deposits of gravel, sand and clay
Elliber soils--formed in residuum weathered from calcareous shale, siliceous siltstone, silty chert, and cherty limestone, very deep to bedrock
Gainesboro soils--formed in residuum that weathered from acid red shale, fine-grained sandstone, and siltstone; moderately deep to hard bedrock
Hartleton soils--formed in glacial till or frost-churned materials
Irondale soils--formed in residuum from fine-grained igneous rock; moderately deep to hard bedrock
Macove soils--formed in colluvium from acid shale and fine-grained sandstone; very deep to bedrock
Meadowfield soils--formed in residuum that is affected by soil creep in the upper part, weathered from high-grade metamorphic rocks; moderately deep to hard bedrock
Mertz soils--formed in colluvial or glacial material derived from limestone containing various amounts of chert fragments; deep and very deep to bedrock
Pattenburg soils--formed in residuum from quartzose conglomerate or fanglomerate; very deep to bedrock
Pilot Mountain soils--formed in colluvium and alluvium derived from materials weathered from felsic to mafic high-grade metamorphic rocks; very deep to bedrock
Weverton soils--formed in residuum affected by soil creep, weathered from interbedded quartzite, quartz muscovite schist, and phyllite; very deep to bedrock
Trevlac soils--formed in residuum weathered from interbedded siltstone, sandstone and shale bedrock; moderately deep to soft bedrock
GEOGRAPHIC SETTING:
Landscape: Piedmont or Foothill
Landform: Hill
Hillslope Profile Position: Summit, shoulder, and backslope
Geomorphic Component: Interfluve, sideslope, and nose slope
Elevation: 900 to 2,000 feet
Parent Material: Residuum affected by soil creep, weathered from high-grade metamorphic rocks
Mean Annual Air Temperature: 52 to 57 degrees
Mean Annual Precipitation: 45 to 55 inches
Frost Free Period: 190 to 210 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Buckhall soils--have a fine particle-size control section with mixed clay mineralogy and moderate shrink-swell potential and very deep to bedrock; on similar landforms
Clifford soils--have a fine particle-size control section with kaolinitic clay mineralogy and low shrink-swell potential, an argillic horizon 25 to 60 inches thick and very deep to bedrock; on similar landforms
Fairview soils--have a fine particle-size control section with kaolinitic clay mineralogy and low shrink-swell potential, an argillic horizon less than 25 inches thick and very deep to bedrock; on similar landforms
Rhodhiss soils--have a fine-loamy particle-size control section and very deep to bedrock; on similar landforms
Woolwine soils--have a fine particle-size control section with kaolinitic clay mineralogy and low shrink-swell potential and moderately deep to soft bedrock; on similar landforms
DRAINAGE AND PERMEABILITY:
Drainage class (Agricultural): Well drained
Index Surface Runoff: Low to high
Internal Free Water Occurrence: Very deep, Absent
Permeability: Moderate
USE AND VEGETATION:
Major Uses: Woodland and pasture
Dominant Vegetation: Mixed hardwood and pine.
DISTRIBUTION AND EXTENT:
Distribution: Piedmont of North Carolina and possibly Virginia
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Caldwell County, North Carolina; 1983.
REMARKS: This soil was formerly included in the Talladega and Tallapoosa series. The completed soil temperature study indicates the county where the series type site is located is mesic throughout. The 08/2000 revision updates the series to a mesic temperature regime.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon--The zone from 0 to 12 inches (the A1, A2, and BA horizons)
Argillic horizon--The zone from 12 to 24 inches (the Bt horizon)
Paralithic contact--The contact with weathered bedrock at 24 inches
ADDITIONAL DATA: Engineering Index Data from Soil Mechanics Lab, Ft. Worth, TX; pedon (S80NC-027-005). Sand mineralogy (fine sand) of the Bt horizon from North Carolina State University, Department of Soil Science Lab., May 12, 1980:
Fine Sand Mineralogy (Optical Grain Count); quartz 64.3 percent; mica 23.0 percent; opaque 1.7 percent; and heavy minerals 11.0 percent.
Data Map Unit ID: To be developed
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation NC0153 HIBRITEN 6- 60 52- 57 190-210 45- 55 900-2000SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness NC0153 NONE 6.0-6.0 - 20-40 SOFT
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- NC0153 0-12 CBV-SL STV-SL 10- 60 35- 90 7-20 2- 6 NC0153 0-12 GR-SL 0- 20 30- 55 7-20 2- 6 NC0153 0-12 CB-SL 15- 30 65- 80 7-20 2- 6 NC0153 12-24 CBV-CL CBV-SCL CBV-L 20- 70 35- 90 10-35 2- 8 NC0153 24-48 WB - - - - NC0153 48-58 UWB - - - -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll NC0153 0-12 4.5- 5.5 .5-2. 0- 0 2.0- 6.0 LOW NC0153 0-12 4.5- 5.5 .5-2. 0- 0 2.0- 6.0 LOW NC0153 0-12 4.5- 5.5 .5-2. 0- 0 2.0- 6.0 LOW NC0153 12-24 4.5- 5.5 0.-.5 0- 0 0.6- 2.0 LOW NC0153 24-48 - - - - NC0153 48-58 - - - -